/* Lentasoft — özgün tasarım. Inter + JetBrains Mono, yeşil devre teması */
@font-face{font-family:"Inter";font-style:normal;font-weight:100 900;font-display:swap;src:url(../fonts/inter-latin-ext-wght-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";font-style:normal;font-weight:100 900;font-display:swap;src:url(../fonts/inter-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:100 800;font-display:swap;src:url(../fonts/jetbrains-mono-latin-ext-wght-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:100 800;font-display:swap;src:url(../fonts/jetbrains-mono-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --g:#0A8F66; --g-d:#07694c; --g-l:#e4f5ee; --g-b:#2bd79b;
  --ink:#0d1512; --ink2:#2a3631; --mut:#5b6b64; --line:#dde5e1;
  --bg:#f5f8f6; --card:#fff; --dark:#0b1210; --dark2:#121c18; --dline:#22332c;
  --warn:#b45309; --warn-bg:#fff7ea;
  --r:14px; --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --w:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto}
a{color:var(--g-d);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--g)}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-.02em;margin:0 0 .6em;color:var(--ink)}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.55rem,3vw,2.2rem);font-weight:750}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.sr{position:absolute;left:-9999px}
.skip{position:absolute;left:12px;top:-60px;background:var(--g);color:#fff;padding:10px 16px;border-radius:8px;z-index:200}
.skip:focus{top:12px;color:#fff}
:focus-visible{outline:3px solid var(--g-b);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--g-d);font-weight:600;margin:0 0 14px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--g)}
.dark .eyebrow,.hero .eyebrow,.band .eyebrow,.page-hero .eyebrow{color:var(--g-b)} .dark .eyebrow::before,.hero .eyebrow::before,.band .eyebrow::before{background:var(--g-b)}

/* top bar */
.topbar{background:var(--dark);color:#b9c9c2;font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar a{color:#d7e6df;text-decoration:none} .topbar a:hover{color:var(--g-b)}
.topbar .tb-r{display:flex;gap:18px}
@media(max-width:700px){.topbar .tb-l{display:none}.topbar .wrap{justify-content:center}}

/* header */
.hdr{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px}
.logo img{display:block;width:210px;height:auto}
@media(min-width:1100px){.logo img{width:250px}}
.nav{display:none}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;align-items:center}
.nav a,.nav button.dd{font:inherit;font-size:.95rem;font-weight:600;color:var(--ink2);text-decoration:none;padding:10px 12px;border-radius:8px;background:none;border:0;cursor:pointer;display:flex;align-items:center;gap:5px}
.nav a:hover,.nav button.dd:hover,.nav li.open>button.dd{background:var(--g-l);color:var(--g-d)}
.nav a[aria-current=page]{color:var(--g-d)}
.has-dd{position:relative}
.dd-menu{display:none;position:absolute;left:0;top:100%;min-width:340px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px rgba(13,21,18,.14);padding:8px;z-index:50}
.has-dd:hover>.dd-menu,.has-dd.open>.dd-menu,.has-dd:focus-within>.dd-menu{display:block}
.dd-menu a{display:flex;font-weight:500;padding:9px 12px}
.dd-menu a small{display:block;color:var(--mut);font-weight:400;font-size:.8rem;line-height:1.35}
.dd-menu .ico{flex:none;width:22px;height:22px;color:var(--g);margin-top:2px}
.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:700;font-size:.95rem;padding:12px 20px;border-radius:10px;border:2px solid var(--g);background:var(--g);color:#fff;text-decoration:none;cursor:pointer;transition:background .15s,transform .15s}
.btn:hover{background:var(--g-d);border-color:var(--g-d);color:#fff}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--g-d)} .btn.ghost:hover{background:var(--g-l);color:var(--g-d)}
.dark .btn.ghost,.hero .btn.ghost,.page-hero .btn.ghost,.band .btn.ghost,.box.cta .btn.ghost{color:#fff;border-color:#3b5249} .dark .btn.ghost:hover,.hero .btn.ghost:hover,.page-hero .btn.ghost:hover,.band .btn.ghost:hover,.box.cta .btn.ghost:hover{background:#1a2a24;border-color:var(--g-b);color:#fff}
.btn.sm{padding:9px 16px;font-size:.88rem}
.btn svg{width:18px;height:18px}
.burger{background:none;border:1px solid var(--line);border-radius:10px;width:46px;height:46px;display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.burger svg{width:24px;height:24px}
.mnav{display:none;border-top:1px solid var(--line);background:#fff;max-height:calc(100vh - 120px);overflow:auto}
.mnav.open{display:block}
.mnav a{display:block;padding:12px 20px;text-decoration:none;color:var(--ink2);font-weight:600;border-bottom:1px solid var(--line)}
.mnav details summary{padding:12px 20px;font-weight:600;cursor:pointer;border-bottom:1px solid var(--line);list-style:none}
.mnav details summary::-webkit-details-marker{display:none}
.mnav details summary::after{content:"+";float:right;font-family:var(--mono)}
.mnav details[open] summary::after{content:"–"}
.mnav details a{padding-left:36px;font-weight:500;background:var(--bg)}
.mnav .m-cta{padding:16px 20px}
.mnav .m-cta .btn{width:100%;justify-content:center;color:#fff}
.hdr .hcta{display:none}
@media(min-width:1100px){.nav{display:block}.burger,.mnav{display:none!important}.hdr .hcta{display:inline-flex}}

/* hero */
.hero{background:var(--dark);color:#e8f2ee;position:relative;overflow:hidden;padding:64px 0 72px}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--dline) 1px,transparent 1px),linear-gradient(90deg,var(--dline) 1px,transparent 1px);background-size:44px 44px;opacity:.35;mask-image:radial-gradient(ellipse at 70% 40%,#000 10%,transparent 70%)}
.hero::after{content:"";position:absolute;width:520px;height:520px;right:-120px;top:-160px;background:radial-gradient(circle,rgba(10,143,102,.38),transparent 65%)}
.hero .wrap{position:relative;z-index:1;display:grid;gap:44px;align-items:center}
@media(min-width:960px){.hero .wrap{grid-template-columns:1.12fr .88fr}}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--g-b)}
.hero .lead{font-size:1.15rem;color:#b9cdc5;max-width:60ch}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.ticks{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:8px;color:#cfe0d9;font-size:.98rem}
.ticks li{display:flex;gap:10px;align-items:flex-start}
.ticks svg{flex:none;width:20px;height:20px;color:var(--g-b);margin-top:3px}
.page-hero{background:var(--dark);color:#e8f2ee;padding:44px 0 52px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--dline) 1px,transparent 1px),linear-gradient(90deg,var(--dline) 1px,transparent 1px);background-size:44px 44px;opacity:.25;mask-image:linear-gradient(90deg,transparent,#000)}
.page-hero .wrap{position:relative}
.page-hero h1{color:#fff;max-width:24ch;font-size:clamp(1.8rem,4vw,2.8rem)}
.page-hero.wide h1{max-width:30ch}
.page-hero .lead{color:#b9cdc5;max-width:68ch;font-size:1.1rem}
.crumbs{font-size:.84rem;color:#8fa79d;margin:0 0 18px;font-family:var(--mono)}
.crumbs a{color:#b9cdc5;text-decoration:none} .crumbs a:hover{color:var(--g-b)}
.crumbs span{margin:0 6px;opacity:.6}

/* HMI mock */
.hmi{background:#0f1a16;border:1px solid #2a3f36;border-radius:16px;box-shadow:0 30px 60px rgba(0,0,0,.45);font-family:var(--mono);color:#cfe0d9;overflow:hidden}
.hmi-top{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#14231d;border-bottom:1px solid #2a3f36;font-size:.72rem;letter-spacing:.06em}
.hmi-top b{color:var(--g-b)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--g-b);margin-right:6px;box-shadow:0 0 8px var(--g-b)}
.hmi-body{padding:16px;display:grid;gap:14px}
.hmi-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{background:#13221c;border:1px solid #23372f;border-radius:10px;padding:12px}
.tile .k{font-size:.66rem;letter-spacing:.1em;color:#7f988d;text-transform:uppercase}
.tile .v{font-size:1.5rem;font-weight:700;color:#fff;margin-top:4px}
.tile .v small{font-size:.75rem;color:#7f988d;font-weight:500}
.hmi svg{display:block;width:100%}
.hmi-note{font-size:.66rem;color:#6f8a7e;padding:0 14px 12px;text-align:right}
.ladder{font-size:.7rem;color:#9ab5a9;line-height:1.5;white-space:pre;overflow:hidden}

/* sections */
section{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head p{color:var(--mut);font-size:1.08rem}
.alt{background:#fff;border-block:1px solid var(--line)}
.dark{background:var(--dark);color:#d4e4dd}
.dark h2,.dark h3{color:#fff}
.dark .sec-head p{color:#9db3a9}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit;position:relative;transition:border-color .15s,box-shadow .15s,transform .15s}
a.card:hover{border-color:var(--g);box-shadow:0 14px 30px rgba(10,143,102,.12);transform:translateY(-2px);color:inherit}
.card h3{margin:8px 0 4px}
.card p{color:var(--mut);margin:0;font-size:.98rem}
.card .more{margin-top:auto;padding-top:14px;color:var(--g-d);font-weight:700;font-size:.9rem;display:flex;align-items:center;gap:6px}
.card .more svg{width:16px;height:16px}
.ico-box{width:46px;height:46px;border-radius:12px;background:var(--g-l);color:var(--g-d);display:grid;place-items:center}
.ico-box svg{width:26px;height:26px}
.dark .card{background:var(--dark2);border-color:var(--dline)} .dark .card p{color:#9db3a9}
.dark .ico-box{background:#16392d;color:var(--g-b)}

/* flow */
.flow{display:grid;gap:12px;counter-reset:f}
@media(min-width:900px){.flow{grid-template-columns:repeat(5,1fr);gap:0}}
.flow a{display:block;padding:20px 18px;background:var(--dark2);border:1px solid var(--dline);color:#d4e4dd;text-decoration:none;position:relative}
.flow a:hover{background:#17261f;color:#fff;border-color:var(--g)}
.flow a::before{counter-increment:f;content:"0" counter(f);font-family:var(--mono);font-size:.74rem;color:var(--g-b);display:block;margin-bottom:10px;letter-spacing:.1em}
.flow b{display:block;color:#fff;margin-bottom:4px;font-size:1.02rem}
.flow span{font-size:.88rem;color:#9db3a9;line-height:1.45;display:block}
@media(min-width:900px){.flow a{border-right:0}.flow a:first-child{border-radius:14px 0 0 14px}.flow a:last-child{border-right:1px solid var(--dline);border-radius:0 14px 14px 0}.flow a:not(:last-child)::after{content:"";position:absolute;right:-8px;top:50%;width:14px;height:14px;background:var(--g);transform:translateY(-50%) rotate(45deg);z-index:2;clip-path:polygon(100% 0,100% 100%,0 100%);opacity:.9}}

/* steps */
.steps{display:grid;gap:18px;counter-reset:s}
@media(min-width:800px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--mono);font-weight:700;font-size:2rem;color:var(--g);display:block;margin-bottom:6px}
.step h3{margin-bottom:6px}.step p{color:var(--mut);margin:0;font-size:.97rem}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:#fff;padding:22px;text-align:left}
.stat b{display:block;font-family:var(--mono);font-size:1.7rem;color:var(--g-d)}
.stat span{color:var(--mut);font-size:.9rem}

/* content */
.cols{display:grid;gap:36px}
@media(min-width:960px){.cols{grid-template-columns:minmax(0,1fr) 340px;align-items:start}}
.side{display:grid;gap:18px;position:sticky;top:96px}
.box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.box h3{font-size:1rem;margin-bottom:10px}
.box ul{margin:0;padding-left:18px;color:var(--ink2);font-size:.95rem} .box li{margin-bottom:6px}
.box.cta{background:var(--dark);border-color:var(--dark);color:#cfe0d9} .box.cta h3{color:#fff}
.box.cta .btn{width:100%;justify-content:center;margin-top:8px}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.checks li{display:flex;gap:10px} .checks svg{flex:none;width:20px;height:20px;color:var(--g);margin-top:4px}
.warn{background:var(--warn-bg);border:1px solid #f0d9a8;border-left:4px solid var(--warn);border-radius:10px;padding:18px 20px}
.warn h3{color:var(--warn);font-size:1rem;margin-bottom:8px}
.warn ul{margin:0;padding-left:18px} .warn li{margin-bottom:8px}
.items{display:grid;gap:14px}
.item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.item h3{font-size:1.05rem;margin-bottom:4px}.item p{margin:0;color:var(--mut)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.tags li{font-family:var(--mono);font-size:.78rem;background:var(--g-l);color:var(--g-d);padding:5px 10px;border-radius:999px}
.tag-dark li{background:#16392d;color:var(--g-b)}
.note{background:var(--g-l);border-left:4px solid var(--g);border-radius:10px;padding:16px 20px;margin:24px 0}
.scn{background:#fff;border:1px dashed var(--g);border-radius:var(--r);padding:24px}
.scn .lab{font-family:var(--mono);font-size:.74rem;color:var(--warn);background:var(--warn-bg);display:inline-block;padding:4px 10px;border-radius:6px;margin-bottom:12px}

/* article */
.article{max-width:760px}
.article h2{margin-top:2em;font-size:1.6rem}
.article h3{margin-top:1.4em}
.article ul,.article ol{padding-left:22px} .article li{margin-bottom:8px}
.table-wrap{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--g-l);color:var(--ink);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
.toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:0 0 28px}
.toc b{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--g-d)}
.toc ol{margin:8px 0 0;padding-left:20px} .toc a{text-decoration:none}
.meta{font-family:var(--mono);font-size:.8rem;color:#9db3a9;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:14px}
.pill{font-family:var(--mono);font-size:.74rem;background:var(--g-l);color:var(--g-d);padding:4px 10px;border-radius:999px;display:inline-block}
.dark .pill,.page-hero .pill{background:#16392d;color:var(--g-b)}
.post-card h3{font-size:1.1rem}
.post-card .meta{color:var(--mut);margin-top:auto;padding-top:12px}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.faq summary{padding:16px 20px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--g);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 20px 18px;margin:0;color:var(--ink2)}

/* glossary */
.gl{display:grid;gap:12px}
.gl div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.gl dt{font-family:var(--mono);font-weight:700;color:var(--g-d);margin-bottom:4px}
.gl dd{margin:0;color:var(--ink2)}

/* cta band + form */
.band{background:linear-gradient(135deg,#0b1210,#0f2a21);color:#d4e4dd;padding:72px 0}
.band h2{color:#fff}
.band .wrap{display:grid;gap:36px}
@media(min-width:960px){.band .wrap{grid-template-columns:.9fr 1.1fr;align-items:start}}
form.f{background:#fff;color:var(--ink);border-radius:var(--r);padding:26px;display:grid;gap:14px}
.f label{font-weight:600;font-size:.9rem;display:grid;gap:6px}
.f input,.f select,.f textarea{font:inherit;padding:12px 14px;border:1px solid #c4d0cb;border-radius:10px;background:#fff;color:var(--ink);width:100%}
.f textarea{min-height:110px;resize:vertical}
.f .row{display:grid;gap:14px}
@media(min-width:600px){.f .row{grid-template-columns:1fr 1fr}}
.f .chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.85rem;color:var(--mut)}
.f .chk input{width:auto;margin-top:4px}
.f .hp{position:absolute;left:-9999px}
.f-msg{font-size:.92rem;padding:12px 14px;border-radius:10px;display:none}
.f-msg.ok{display:block;background:var(--g-l);color:var(--g-d)}.f-msg.err{display:block;background:#fdecec;color:#a11}
.contact-list{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px}
.contact-list li{display:flex;gap:12px;align-items:flex-start}.contact-list svg{width:22px;height:22px;color:var(--g-b);flex:none;margin-top:2px}
.contact-list a{color:#fff}

/* footer */
.ftr{background:var(--dark);color:#9db3a9;padding:56px 0 24px;font-size:.93rem}
.ftr .fg{display:grid;gap:32px}
@media(min-width:900px){.ftr .fg{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.ftr h4{color:#fff;font-size:.85rem;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ftr a{color:#b9cdc5;text-decoration:none}.ftr a:hover{color:var(--g-b)}
.ftr .flogo img{width:220px;display:block;margin-bottom:14px}
.ftr .legal{border-top:1px solid var(--dline);margin-top:36px;padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.84rem}
.float-cta{display:none}
@media(max-width:700px){.float-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--line);padding:10px 16px}.float-cta .btn{width:100%;justify-content:center}body{padding-bottom:70px}}
.err404{text-align:center;padding:90px 0}
.err404 .big{font-family:var(--mono);font-size:5rem;color:var(--g);font-weight:800}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.hdr,.topbar,.ftr,.float-cta,.band{display:none}}